No, your paranoia-outage is the true "national security threat" - a threat to freedom. Stop fanning the flames and calling for more government intervention.
They are basically 'won't someone please think of the children?', but with higher stakes.
The abuse of the term "National Security Threat' doesn't mean legitimate threats don't exist. "There are no NSTs" as a left-wing dog whistle would be equally damaging by ignoring legitimate concerns - both approaches lead to the same outcomes, similar to the vast majority of highly popularized left-right wrestling shows.
Hidden, unknown to the public residential proxies are a national security threat, and there's no need to ban them in order to protect from that - just make them public. There would be no problem if I knew the IPs who could act as proxies and block them, that would be a fair game.